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Finding the Fourth Proportional to 415,993.90, 574,071.48 and 234,704.20

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Solution

The fourth proportional to 415,993.90, 574,071.48 and 234,704.20 is: 323,891.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,993.90 : 574,071.48 = 234,704.20 : x
  2. Step 2: Convert to fraction form
    415,993.90/574,071.48 = 234,704.20/x
  3. Step 3: Cross multiply
    415,993.90x = 574,071.48 × 234,704.20
  4. Step 4: Simplify right side
    415,993.90x = 134,736,987,456.22
  5. Step 5: Solve for x
    x = 134,736,987,456.22/415,993.90
  6. Step 6: Final answer
    x = 323,891.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.